OK.'ve lost my backup, but I'll type it in again (the story behind it is in another thread...) It is an Aussie Birthday Card (with pictures) invention by The Ink Group.
Hippo Birdie, Two Ewes!
Hippo Birdie, Two Ewes!
Hippo Birdie, Hippo Birdie! (or Dear XXXX)
Hippo Birdie, Two Ewes!